You can create price alert here, copy coupons and view price history. What is best price?
Max. current: 10A / gang, Power supply: 90 – 264V AC (50 / 60Hz), Max. power: 2200W / gang, 3500W / total
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
.
Link: Banggood product page
1. ($17.84): BGSHOM15
2. ($19.99): 13f142
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 502C6B, elec, BG4CHR2, BGCITYADS2019, BGE13, bGpAnDacHeCk, BGVDay10%off, 0e7f33, FBCOUPON1, bGhOnEy10, BGTT10, BGSMOFF, BGSONOFF15, BGELIG0920, BgcLuBofErtA10, BGSONOFF16, BG15Sonoff
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – SONOFF 4CH Rev2 Smart Switch ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for SONOFF 4CH Rev2 Smart Switch [EU/UK]? There we go.
Price records source(s): Banggood
Click on image to enlarge. ![Price history for SONOFF 4CH Rev2 Smart Switch [EU/UK]](https://couponsfromchina.com/pricehistory/History19555.png "SONOFF 4CH Rev2 Smart Switch [EU/UK] price history")
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).